Brine's Gate

Meet Genevieve Brine: shoe-freak, jellybean addict, high school freshman—and Gatekeeper to the Universe...
When Gen’s first high school date goes horribly wrong, she appears back in her room—instantly. A mysterious old man informs her that’s she’s the last GATE—beings with the power to open portals between anywhere in the universe.
So Gen does the only rational thing she can think of: she calls the cops and has the old man arrested.
I mean, what was he doing in her room?
Now Gen’s world will never be the same. The first week of high school is hard enough, but she has to juggle it with the first week of superpowers.
And nobody believes her—naturally.
And she’s crushing on her best friend’s off-limits brother—of course.
And her other best friend is a mind-reading zombie alien—wait... what?
When Gen’s powers attract the unwanted attention of a secret government organization—right, because that’s always the story—the lives of everybody she knows are put in danger. It’s up to Gen to save them, but who does she trust? The playboy war hero? Her geeky buddy with the ironic tee and the glowing orange eyes? Or a really cute turn-coat G-man?
And above all, will her own powers betray her in the end?